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Late reply...For those with a volt-ohm-meter: These LEDs are wired in series. If the driver output powers up and only one of the LEDs are bad (opened - not shorted), the voltage across a single bad LED would be the same as the driver's output voltage. (voltage is felt across an open circuit -...

I dim only for temperature control

Good suggestion. The light rail motor should work if a balancing counterweight is added to ease the load on the motor & traction wheel.

Love the 120 day return policy at GLS. I bought a Progrow320 last summer & glad I did. Can't vouch for this year's product line.

An alternative to flood trays is buckets. The Bucket Company does away with flood tables.

Blue Dream on day 50 of flower with 10 minutes of 30 watt UVA per hour (120 minutes total). Does she look burnt? My two Spiderfarmer SF-UV30 LED bars are 18 inches above the plants in a 4'x'2 tent. Main light is a Grow Light Science's Progrow 320. 1st grow with UVA LED.

The pistols will tell you when you're UVA LED's on time is too long. These Blue Dreams have burnt pistols from running my SF-UV30 strips for a two hour continuous block in the middle of the day. I reduced the on time to an initial six minutes per daylight hour and have incrementally increased it...

Get a vaporizer & the neighbors wont smell a thing.

ChilLed Growcraft X3 - 330w DIY kit for $325.00

I F'd up & learned UVA can burn an idiot's plants. I've got some Blue Dream photoperiod clones growing in a 2'x4' under a Grow Light Science Progrow-320 (293 watts for 12 hours) and Spider Farmer SF-UV30 (30 watts for 2 continuous hours) and pictures are at day 21 of flower. I've decreased the...

Try calling Grow Light Science to see if they'll make you a custom length cable. I didn't mind paying extra for the 10' DC extension cable because I only paid $295 for the Progrow320 during the early summer 2022 sale. I doubt that sale price will be repeated because the cost of shipping items...

1 Million milligrams

Unsponsored Blue Dream photoperiod girls flowering under a Viparspectra KS5000 and Spider Farmer SF-UV30 grow light. Day 33 and the girls look good to me. Floraflex watering system, Jacks 321, and 6" rockwool keep the plants thriving.

SF suggest 2 hour max per day during flower so I'm using a separate timer.

This is my 1st grow with the KS5000, 1st with UVA, & 1st time with Blue Dream & new tent. I'm spending too much upgrading things this year.

I was bitten by the UV LED curiosity bug so I bought the Spider Farmer's 30 watt UVA LED bar set. $ Discount code bassdropkeys worked. What's in the box? There are two 15 watt bars in the box. Fits in a 4'x4 tent & the ends poke into the tent walls when the exhaust fan ramps up. Thin wires...

Get the free Photone app then read this.

I like that I didn't need to buy extra cables to move the LED driver outside the tent. My duct fan exhaust blows across the Sosen driver on the tent roof. $450 right now at Bezo's Store. We're getting 500 watts of LM301H & 660nm LEDs at less than a dollar per watt!

Last week, I bought the Viparspectra KS500 at Ama for 3% less than $499 with a HighiganKS discount code. Yesterday the price dropped to $480. Via Ama, I contacted Viparspectra and they said they'd refund the difference & still honor the discount code. Made me happy.

I compared the KS5000 website - Rollitup discount price vs Amazon - ($100 coupon + Highigan discount). Amazon wins & takes my $.